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1. Once tagged, the heads and cylinder sets are taken to the robot room and mounted to an engine fixture using the factory boltholes. This allows the fixture to sit the same as the cylinders would on the motor cases with no risk of damage to the gasket surface. Then the robot operator chooses the proper program for the individual motor parts, like Harley's Twin Cam or Evo. Although the parts may look the same, there can be as much as 1/2-inch difference in size from each motor company. To make sure that every cut is the same from top to bottom, the robot probes all points of each fin. It probes to check the thickness of each fin, then the length of each fin compared to the next fin in order from top to bottom. As you look at the cylinder you can see that from the bottom to the top the fins get bigger, more area to cut. The probe makes note of the size change and notes each fin. View Related Article
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